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2506.5You can search for any mathematical expression, using functions such as: sin, cos, sqrt, etc. You can find a complete list of functions here.RadDegx!Invsinlnπcoslogetan√AnsEXPxy()%AC789÷456×123−0.=+

According to Rule 72, it will take 11 years to double Doug’s investment.

What is Rule 72?

The Rule of 72 is a calculation that estimates the number of years it takes to double your money at a specified rate of return.

  • If, for example, your account earns 6.5 percent, divide 72 by 6.5 to get the number of years it will take for your money to double.

Given:

Doug Invested $2,500 into a certificate of Deposit

Interest Rate = 6.5%

The number of years = 72/interest rate

∴ 72/6.5 = 11 years

Therefore, it will take 11 years to double Doug’s investment.

To learn more about double investment refer to:

https://brainly.com/question/3586911

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